Buck is a crater in the Navka region of

Venus Venus is the second planet from the Sun. It is often called Earth's "twin" or "sister" planet for having almost the same size and mass, and the closest orbit to Earth's. While both are rocky planets, Venus has an atmosphere much thicker ...

. It has the

terraced wall A terraced wall, also a terrace wall, or a terraced retaining wall is a wall that is divided into sections ( terraces) over a slope. Such designs are useful when building on a steep grade. Terraced walls may be built with many different materi ...

s, flat radar-dark floor, and central peak that are characteristic of craters classified as "complex". The central peak on its floor is unusually large. Flow-like deposits extend beyond the limits of the coarser rim deposits on its west and southwest. Like about half of the craters mapped by '' Magellan'' to date, it is surrounded by a local, radar-dark halo.

References

* Impact craters on Venus {{Venus-crater-stub